I have the adjustable hiking stick and used a small rubber ball I had from a key chain. It is smaller than a tennis ball but still gives you a little something to hold onto on the end. I just hollowed it out and taped it up with hockey grip tape. That stuff works great and has a good feel to it and is waterproof, much better than duct tape.

I use a rubber chair leg end from Lowes or Home Depot fits great very cheap easily replaceable and much safer than having a blunt end It even feels good in the handThe other issue is that sooner or later the metal hiking stick will get bent or broken a Hobie hot stick is the real way to goFormer Hobie Admiral Gary